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  <pre class="prettyprint lang-js"><span id='Ext-chart-TipSurface'>/**
</span> * @class Ext.chart.TipSurface
 * @ignore
 */
Ext.define('Ext.chart.TipSurface', {

    /* Begin Definitions */

    extend: 'Ext.draw.Component',

    /* End Definitions */

    spriteArray: false,
    renderFirst: true,

    constructor: function(config) {
        this.callParent([config]);
        if (config.sprites) {
            this.spriteArray = [].concat(config.sprites);
            delete config.sprites;
        }
    },

    onRender: function() {
        var me = this,
            i = 0,
            l = 0,
            sp,
            sprites;
            this.callParent(arguments);
        sprites = me.spriteArray;
        if (me.renderFirst &amp;&amp; sprites) {
            me.renderFirst = false;
            for (l = sprites.length; i &lt; l; i++) {
                sp = me.surface.add(sprites[i]);
                sp.setAttributes({
                    hidden: false
                },
                true);
            }
        }
    }
});
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